Incubator



Aug. 16, .1921. 1,639,025

A. H. DENAULT INCUBATOR I Filed Jan. 4, 1926 I 3 Sheets-Sheet 2 H v v 21J5\ /v luvEmon. nmsuwosymmqr.

Aug. 16,1927. Y Y 1,639,025

- A. H. DENAULT INCUBATOR I Filed Jan. 4, 1926 {Sheets-Sheet 3luilim'on.

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Patented Aug. 16, 1927.

UNITED STATES ALBERT HORACE DENAULT, or SAULT STE. MA RI EQONTARIO,CANADA.

' INOUBATOB.

Application filed January 4, 1926; Serial No. 79,250.

This invention relates to improvements in incubatorsland moreparticularly to improved means for turningthe eggs in incubators and theobjects of the invention are a to provide a simple and durablyconstructed incubator provided with means operable from the outside foraccurately turning the eggs to a predetermined extent during the periodof incubation without touching them and whereby more satisfactoryresults are obtained; 1 I 1 Further objects arethe provision of means ofthis character that can be readily fitted few andreadily assembled.

Withthe foregoing and other objects in view theinvention' consistsessentially in the combination, with theegg-holding rack of anincubator, of a shaft, slidably operable from the outside of theincubator, extending beneath the rack and provided with can egg-turningmember. 7 disengage with the eggs in the rack and means in the shaft,also operable from the outside of the incubator, for operating theturning member. I 1

Referring now to the drawings in which like characters of referenceindicate corresponding parts in each figure: Figure 1 is asideelevatio'n partly insection i Figure 2 is a longitudinal section,

Figure 3 is a section on line 33 of Figure.2,

Figure 4 is a longitudinal section of the shaft carrying the turningmember with dot-' tedlines showing its inoperative position in relationto the egg-carrying rack,

Figure 5 is a section on line 5-5 of Figure 4, v I

Figure 6 is a perspective detail of the turning member,

Figure 7 is a detail of the egg-carrying rack,

Figure 8 is a perspective view of the top side of the screen tray forinsertion beneath the rack,

Figure 9 is a perspective view of the underside of the screen tray,

Figure 10 is a longitudinal section through the screen, and

Figure 11 is a plan view of the carrier shaft with its co-operatingparts.

Referring now more particularly to the 55 drawings, in which an exampleof my invention is illustrated, 10 designates the incuto .an incubatorand f which the parts are adapted to engage-and member 19 is designed totravel when operbator as a whole in the form of a box divided into threecompartments 11, 12 and 13 by partitions l4 and 15, the Whole beingsuitably supported above the ground on legs 16, The compartments 11 and12 in the example illustrated are provided with doors of well knownconstruction opening-outwardly at one side, Within the compartment 12 isslidably and detachably arranged through the incubator is a carriershaft19 mounted onthe roller 20 suitably supported on the partition 14 andextending beneath aroller 21 mounted on a spindle 22 between spacedsupports or brackets 23'rigidly secured in the compartment 13 on theouter side of the partition 15. I The end 24 of the incubator isalso'pro vldedwith an opening 25 through which the ated. This member 19 isprovided with a hollow web 26, extending the full'length thereof,in'which is a carrier plate 27 formed substantially midway of its lengthwith a slantwise cut out 28 to which detachablyfits the eg -turningmember 29 comprising the 'flat plate 30 having,"on the underside,

, the forked stem 31 adapted to straddle the carrier plate 27. Thisturning member is also provided with a roller 32 to engage with thecutout portion 28 of the member 27 For operating the member 27 I providea screwthreaded rod 33 secured, as at 34 in the end of v the member 27.This rod extends through the opening 25 in the end of the incubator andis provided wit-h an operating handle '35 so thatwhen the. latter isoperated the plate 27 Wlll be moved outwardly causing the lifter roller32 to travel up the inclined surface 28, automatically raising themember 29 and, on the handle 35 being turned in the opposite direction,the member 29 will auto matlcally assume normal or lowered position asillustrated in Figure 4.

From the foregoing it will be noted that the turning member 29,restingon the 5 plate 27, is automatically raised or lowered by theforward or backward movement of said plate operated through the screwrod 33 and the handle thereon 35. To move the turning member from onerow of eggs in the egg rack 17 to the next, it is necessary to move thecarrier shaft 19 backwards and forwards and to accomplish this I providea toothed rack 36 on the underside thereof designed to mesh with aroller pinion 37 rigidly mounted on a shaft 38 between the supportingmembers 23, on which the member 19 travels. The shaft 88, as illustratedin Figures 1, 2 and 8, is supported at right angles to the rod 38andextends through the side of the incubator to carry an operatinghandle 39.

The turning of the eggs is accomplished as follows: The carrier memberor shaft 19 having been operated through the handle 39 to bring theturning member beneath a row of eggs in the egg rack, as illustrated inI igure 2, the handle 35 is operated as previously described to raisethe lifter until it contacts with the eggs. The handle 39 is thenoperated to move the member 19 forward and this forward movement incontact with the eggs causes all the in the first row to make a halfturn and so on right across the egg rack 17. The lifter is then, throughthe handle 85, turned to normal lowered position, as illustrated inFigure 4, and the member 19, which has by this time protrudedconsiderably beyond the incubator, is also returned by operating thehandle 35. When the required period of time for incubation has expiredthe tray 17 may be raised and the screen shelf member &0 insertedtherebeneath on the supporting guideways 18. The member 40, as indicatedin the extension to Figure 9, is formed in.

two sections, the screen O being clamped therebetween and secured bysuitable means such as rivets or the like.

The c rack is so constructed with a Jlu ing sense.

\What I claim as my invention is:

1. In an incubator of the character described and in combination, an eggrack, a slidably mounted shaft beneath the rack, a

plate movable in said shaft, a slantwise recess in said plate, anegg-turning member movably mounted in said recess and normally retainedin lowered position therein, means for operating the slidable platewhereby on the latter being horizontally moved the eggturning memberengages with the slantwise recess to travel upwardly to contact with theeggs.

2. In an incubator and in combination with the egg rack, a slidablymounted shaft operable from without the incubator and extending beneaththe eggraclr, an egg-turning member adjustably mounted in the shaft, aguideway in the shaft, and means, operable from without the shaft, forcausing the egg turning member to travel in said guideway to engage withthe eggs in the rack to turn them.

3. In an incubator, a slidable shaft extending beneath the egg rack, amember carried by said shaft adapted to be raised and lowered to engagewith the rows of eggs in the rack to turn them and mechanism, operablefrom without the incubator, for imparting a backward and forwardmovement to the shaft and an upward and downward more meat to saidmember carried thereby.

4. In an incubator of the character described the combination, with anegg rack of a slidably mounted shaft operable from without theincubator, an egg-turning member carried by said shaft, mechanismoperable from without the shaft and means in the shaft for imparting anupward and downward movement to the egg-turning member.

In witness whereof I have hereunto set my hand.

ALBERT HORACE DENAULT.

